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Starch master batch composition for PVA thermoplastic processing, starch master batch and preparation method of starch master batch

A technology of composition and starch, which is applied in the field of starch masterbatch and its preparation, starch masterbatch composition for PVA thermoplastic processing, can solve the problems of difficult blow molding, high processing cost, and low production capacity, and achieve Improved environmental performance, excellent plastic performance, and cost reduction effects

Inactive Publication Date: 2020-06-12
BEIJING YISIDE LOGISTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] PVA water-soluble film is mostly produced by solution casting method, which has extremely high processing cost and low production capacity. Thermoplastic processing using traditional plastic film bags, such as blown film forming method, is a process with low energy consumption and high production capacity. However, since the melting temperature of PVA is close to the decomposition temperature, blown film processing is more difficult

Method used

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  • Starch master batch composition for PVA thermoplastic processing, starch master batch and preparation method of starch master batch

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preparation example Construction

[0048] Second aspect, the present invention provides a kind of preparation method of PVA thermoplastic processing starch masterbatch, and this method comprises:

[0049] The steps of mixing and granulating the above-mentioned starch masterbatch composition for thermoplastic processing of PVA.

[0050] In the method of the present invention, there is no particular limitation on the preparation method of the above-mentioned starch masterbatch for PVA thermoplastic processing, and it can be various preparation methods conventionally adopted by those skilled in the art, and will not be repeated here. In a specific embodiment of the present invention, it is prepared according to the following steps:

[0051] (1) Stir all the compositions described in a high-speed mixer at high temperature for 5-20 minutes;

[0052] (2) Use a parallel twin-screw granulator to extrude and granulate to obtain starch masterbatch for PVA thermoplastic processing.

[0053] In a specific embodiment of t...

Embodiment 1

[0062] Starch masterbatch composition for PVA thermoplastic processing, including:

[0063] 65 parts by weight of tapioca starch, 35 parts by weight of PVA178835, 25 parts by weight of sorbitol, 3 parts by weight of PEG-30003, 2 parts by weight of organotin thermal decomposition inhibitor, 2 parts by weight of epoxy soybean oil, 10101 parts by weight of antioxidant, 2 parts by weight of DSTP , 2 parts by weight of hardened oil.

Embodiment 2

[0065] Starch masterbatch composition for PVA thermoplastic processing, including:

[0066] 70 parts by weight of potato starch, 30 parts by weight of PVA208830 parts by weight, 15 parts by weight of mannitol, 40 parts by weight of glycerin, 5 parts by weight of PEO, 2 parts by weight of rare earth stabilizer, 1 part by weight of sorbitan stearate, 6973 parts by weight of antioxidant , 1680.5 parts by weight, 1.5 parts by weight of tripolyglycerol monostearate.

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Abstract

The invention belongs to the field of biodegradable materials, and discloses a starch master batch composition for PVA thermoplastic processing, a starch master batch and a preparation method of the starch master batch. The starch master batch composition for PVA thermoplastic processing is prepared from, by weight, 100 parts of starch and a PVA carrier, 10-55 parts of a micromolecular plasticizer, 1-10 parts of a macromolecular plasticizer, 1-8 parts of a thermal decomposition inhibitor, 0.5-6 parts of a thermo-oxidative aging resisting agent and 0.5-6 parts of a lubricating agent. The starchmaster batch for PVA thermoplastic processing can be used as a filling starch master batch during PVA granulation, so that the cost of PVA is reduced.

Description

technical field [0001] The invention relates to the field of biodegradable materials, in particular to a starch masterbatch composition for PVA thermoplastic processing, a starch masterbatch and a preparation method thereof. Background technique [0002] Polyvinyl alcohol (PVA) is soluble in water at different temperatures, has high mechanical properties, good transparency, high oil and corrosion resistance, and can be split and degraded under natural conditions, and finally biodegraded into carbon dioxide and water. The natural environment is a biodegradable environmentally friendly material. Starch is a biomass raw material obtained from plants. It has the characteristics of low cost, renewable and completely biodegradable. The use of starch raw materials and degradable resins to prepare biomass-filled biodegradable plastics is one of the research hotspots in recent years. . [0003] PVA water-soluble film is mostly produced by solution casting method, which has extremel...

Claims

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Application Information

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IPC IPC(8): C08L3/02C08L29/04C08L91/00C08K5/053C08K5/57C08K5/134C08K5/526C08K5/00C08K3/22C08K13/02C08J3/22C08J5/18
CPCC08J3/226C08J5/18C08J2329/04C08J2403/02C08J2429/04C08J2491/00C08K5/00C08K5/053C08K5/1345C08K5/526C08K5/57C08K13/02C08K2003/2224C08K2003/2227
Inventor 常江
Owner BEIJING YISIDE LOGISTICS TECH